Replacing non-renewable lubricants with vegetables oils in threaded joints

IF 3.8 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Journal of Advanced Joining Processes Pub Date : 2024-06-19 DOI:10.1016/j.jajp.2024.100234

Dario Croccolo , Massimiliano De Agostinis , Stefano Fini , Mattia Mele , Sayed Nassar , Giorgio Olmi , Chiara Scapecchi , Muhammad Yasir Khan , Muhammad Hassaan Bin Tariq

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引用次数: 0

Abstract

Lubrication is essential to ensure the proper performance of threaded joints subjected to multiple tightenings. Previous research has investigated the effectiveness of various mineral and synthetic lubricants, but no studies have been conducted on those derived from renewable sources. In this study, the performances of sesame, sunflower, coconut, and castor oil are compared to traditional VG46 oil and MoS $_{2}$ grease. First, the rheological properties of the oils have been characterized. Then, tightening tests have been carried out to measure the coefficients of friction at the underhead and thread. The results demonstrate that vegetable oils outperform mineral VG46, especially in terms of repeatability. In particular, fractionated coconut oil exhibits exceptionally low coefficients of friction, which are not influenced by the tightening speed, unlike all other tested lubricants.

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用蔬菜油替代螺纹接头中的不可再生润滑剂

润滑对于确保多次拧紧的螺纹接头的正常性能至关重要。以往的研究已对各种矿物和合成润滑剂的有效性进行了调查，但尚未对从可再生资源中提取的润滑剂进行研究。本研究将芝麻油、葵花籽油、椰子油和蓖麻油的性能与传统的 VG46 润滑油和 MoS2 润滑脂进行了比较。首先，对油的流变特性进行了表征。然后，进行了拧紧试验，以测量头下和螺纹处的摩擦系数。结果表明，植物油的性能优于矿物 VG46，尤其是在重复性方面。特别是分馏椰子油的摩擦系数特别低，与所有其他测试过的润滑油不同，它不受拧紧速度的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Advanced Joining Processes Multiple-

CiteScore

7.10

自引率

9.80%

发文量

审稿时长

44 days